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3d72e50cae
Fixed a check to permit [[omp::decl(allocate,...)]] parsing in C. Additionaly, we discussed that 'allocate align' should not affect 'alignof' to avoid issues like with: int a; _Alignas(_Alignof(a)) int b; #pragma omp allocate(a) align(128) _Alignas(_Alignof(a)) int c; Thus, the alignment is no longer set in the C and Fortran front ends, but for static variables now in varpool_node::finalize_decl. (For stack variables, the alignment is handled in gimplify_bind_expr.) NOTE: 'omp allocate' is not yet supported in C++. gcc/c/ChangeLog: * c-parser.cc (c_parser_omp_allocate): Only check scope if not in_omp_decl_attribute. Remove setting the alignment. gcc/ChangeLog: * cgraphunit.cc (varpool_node::finalize_decl): Set alignment based on OpenMP's 'omp allocate' attribute/directive. gcc/fortran/ChangeLog: * trans-decl.cc (gfc_finish_var_decl): Remove setting the alignment. libgomp/ChangeLog: * libgomp.texi (Memory allocation): Mention (non-)effect of 'align' on _Alignof. * testsuite/libgomp.c/allocate-7.c: New test. gcc/testsuite/ChangeLog: * c-c++-common/gomp/allocate-18.c: Check that alignof is unaffected by 'omp allocate'. * c-c++-common/gomp/allocate-19.c: Likewise.
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